array(7) {
  ["img_path"]=>
  string(10) "./captcha/"
  ["img_url"]=>
  string(46) "https://jobs.aiou.edu.pk/jp2021/Portal/captcha"
  ["font_path"]=>
  string(24) "./path/to/fonts/texb.ttf"
  ["word_length"]=>
  int(5)
  ["font_size"]=>
  int(15)
  ["pool"]=>
  string(32) "123456789ABCDEFGHIJKLMNPQRSTWXYZ"
  ["colors"]=>
  array(4) {
    ["background"]=>
    array(3) {
      [0]=>
      int(0)
      [1]=>
      int(0)
      [2]=>
      int(0)
    }
    ["border"]=>
    array(3) {
      [0]=>
      int(0)
      [1]=>
      int(0)
      [2]=>
      int(0)
    }
    ["text"]=>
    array(3) {
      [0]=>
      int(255)
      [1]=>
      int(255)
      [2]=>
      int(255)
    }
    ["grid"]=>
    array(3) {
      [0]=>
      int(0)
      [1]=>
      int(0)
      [2]=>
      int(0)
    }
  }
}